1 files changed, 8 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index e64a6016fba7..6877e3fa95bb 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -203,6 +203,10 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
         for_each_sg(sgl, sg, nents, i) {
                 sg->dma_address = sg_phys(sg) + get_dma_offset(dev);
                 sg->dma_length = sg->length;
+
+                if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+                        continue;
+
                 __dma_sync_page(sg_page(sg), sg->offset, sg->length, direction);
         }
 
@@ -235,7 +239,10 @@ static inline dma_addr_t dma_direct_map_page(struct device *dev,
                                              unsigned long attrs)
 {
         BUG_ON(dir == DMA_NONE);
-        __dma_sync_page(page, offset, size, dir);
+
+        if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+                __dma_sync_page(page, offset, size, dir);
+
         return page_to_phys(page) + offset + get_dma_offset(dev);
 }